Home / 7,613.28-10,505.55-4,255.80

Finding the Fourth Proportional to 7,613.28, 10,505.55 and 4,255.80

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Solution

The fourth proportional to 7,613.28, 10,505.55 and 4,255.80 is: 5,872.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,613.28 : 10,505.55 = 4,255.80 : x
  2. Step 2: Convert to fraction form
    7,613.28/10,505.55 = 4,255.80/x
  3. Step 3: Cross multiply
    7,613.28x = 10,505.55 × 4,255.80
  4. Step 4: Simplify right side
    7,613.28x = 44,709,519.69
  5. Step 5: Solve for x
    x = 44,709,519.69/7,613.28
  6. Step 6: Final answer
    x = 5,872.57

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.